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제116회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Hierarchically driven nanostructures of RuO2 nanorods on TiO2 nanofibers by a coaxial electrospinning process

2015년 9월 3일 15시 32분 23초
PHYS.P-281 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
10월 16일 (금요일) 13:00~14:30
저자 및
정혜승, 김명화1,*, 오혜림2, 함보영3, 정유나4
이화여자대학교 화학나노과학과, Korea
1이화여자대학교 화학 나노과학과, Korea
2이화여자대학교 화학,나노과학과, Korea
3이화여자대학교 화학나노과학, Korea
4이화여자대학교 화학나노학과, Korea
We report a simple coaxial electrospinning process to directly prepare hierarchically driven RuO2 nanorods on TiO2 nanofibers followed by the thermal annealing. The single step fabrication of TiO2/RuO2 composite electrospun nanofibers can be readily achieved by the simultaneous injection of titanium precursor solution as core and ruthenium precursor solution as shell in the manner of the coaxial geometry. The careful control of various atomic ratios of Ti and Ru contents can give rise to well defined hybrid nanostructures of single crystalline RuO2 nanorods directly grown on polycrystalline TiO2 electrospun nanofibers. The morphology and crystal structure of the samples were carefully characterized with field emission scanning electron microscope (FE-SEM), energy dispersive spectroscopy (EDS), X-ray diffraction (XRD) and transmission electron microscopy (TEM). This rational crystal engineering is remarkably simple and versatile for the formation of hierarchical network architectures so that it can be readily applied for the design of other complex functional hetero-nanostructures that might find potential applications in broad range of the fields, such as electrode materials, sensors, catalysts, and energy related devices.